Home / 8,214.18-12,308.31-3,280.74

Finding the Fourth Proportional to 8,214.18, 12,308.31 and 3,280.74

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Solution

The fourth proportional to 8,214.18, 12,308.31 and 3,280.74 is: 4,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.18 : 12,308.31 = 3,280.74 : x
  2. Step 2: Convert to fraction form
    8,214.18/12,308.31 = 3,280.74/x
  3. Step 3: Cross multiply
    8,214.18x = 12,308.31 × 3,280.74
  4. Step 4: Simplify right side
    8,214.18x = 40,380,364.95
  5. Step 5: Solve for x
    x = 40,380,364.95/8,214.18
  6. Step 6: Final answer
    x = 4,915.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.